Depending on the results of an offseason examination of his surgically-repaired neck, Peyton Manning could be playing his final NFL games this postseason, ESPN reported Sunday.

Citing sources, ESPN reported that Manning has a clause in his contract mandating the exam. If his neck, operated on three years ago while he was still an Indianapolis Colt, is found to still be stable, he plans to return to the Broncos for a third season in 2014.

But if the exam reveals a risk to his health, Manning will consider retiring. Manning will not make the decision based on the outcome of the current playoffs. Manning and the Broncos faced the San Diego Chargers Sunday in Denver in the AFC divisional playoffs.

Manning missed the entire 2011 season after the surgery and was waived after the season after 14 years with the Colts. He has not missed a regular-season or playoff game since joining the Broncos, set NFL records this season for touchdown passes and passing yards, and has led Denver to back-to-back 13-3 seasons and No. 1 seeds in the AFC playoffs.